Lock.



H. G. VOIGHT.

LOCK.

APPLICATION FILED NOV. 10, 1911.

Patented Mar. 18, 1919.

' FT: .5. 25 J 26 ATTORNEY.

G. 'VOIGI-IT, OF NEW'BRITAIN, CONNECTICUT, ASSIGNORJTO SARG-ENT & COM- PANY, OF'NEW l'rlIAVIElil', CONNECTICUT, A CORPORATION OF CONNECTICUT.

LOCK.

Specification of Letters Patent.

Patented Mar. '18, 1919.

To allwhom it may concern:

'Be it known that I, HENRY G. VoIoH'r, a citizen of the United States, residing-in New Britain, county of Hartford, and State of Connecticut, have invented certain new and useful Improvementsin Locks, of which the following is a full, clear, and exact description.

This invention relates to locks,.and.more particularly to extensible cylinder locks which are adjustable for application to doors of different thickness. The primary object of the invention .is the production of an eX- tensible lock which permits a maximum range of adjustment with comparatively "few parts, the parts being so constructed :that a material increase is obtained inthe length of the bearings for theguide pins and adjustable screw oVer the type of extensible locks now in general use, without decreasing the range of adjustment.

Another object of the invention is -.to simplify and improve the mechanism by which the extension is adjustably secured to the main part of the lock.

'To these and other ends, the invention consists in the-novel features .and combinations of ,parts to be hereinafter described and claimed.

In the accompanying drawing:

Figure '1 is a sideelevationiof a cylinder lock embodying my improvement, showing the lockpartly extended;

Fig. 2-.is a-similar view .from theopposite side of the lock;

Fig. 3 is an elevation ofth'e lock-shown in Fig. 1, looking in the direction of the arrow, thelock being shown in its shortest adjustment and the extension being shown as cut by a section taken substantially on the line. 33 of Fig. 5;

Fig. 4 is a rear end view'of the main part of the lock, the extension with its guide pins and adjusting screw being removed;

l-F ig. 5 is a view .showingthe inner face of the extension withpthe pins and adjusting screw secured thereto.

My improved cylinder lock comprises .a main part-or cylinderlock proper 10, and an extension 11 detachably connected therewith. .lThe main part 10 is, .for the most part,=of usual construction, having a case 12,

.a face plate or escutcheon 13, a pin tumbler extension 14, and the usual'key plugor barrel' (not shown) inside of'the case 12, which barrel islocked against rotation 'by the usual ,p1n tumblers, (not shown).

In the embodiment lllustrated, the lock proper 10 is provided with a plurality of lugs 15, 1 6 and 17 rigidly formed upon the inner end of the main part of the lock, and sofpositioned that they project'beyond the rear end of the part of thelock .to which they are secured.

The lugl5 isprovided with a threaded drill hole 18 and the lugs .16 and 17 are provided with smooth drillholes 19 and 20. The'key barrel, which. is not shown, is provided with .the well-known washer 21, which maybe secured to its barrel by means of screws 22.

The lugs 16 and 17 are partially cutaway in .order to provide a clearance space in which the washer 21 rotates.

Thedetachable extension 11 for the cylinder lock may consist of a shell-likehead 23 provided with theusual threads upon its periphery, by which the cylinder may be secured to the case of the mortise look. This head 23 is preferably made by stamping sheet metal up in the cup-shaped form shown in F g. 3. However, it will be apparent that my invention is not necessarily limited to this particulary type of head. The extension123 is provided with a plurality of smooth guide pins 2 1 and 25, which are rigidly mounted in the head and project therefrom at right angles to the face ofthe same. The head 23 is further provided with an adjusting screw 26. This screw is rotatably mounted in the head and is held againstlongitudinal movementin one direction relatively to the head by the tapered head of the screw being seated in a .correspondingly tapered countersunk opening in .the extension head, and the screw is held against longitudinal movement in the opposite direction by a washer 27, wlnch washer is secured in place on the screw by upsetting roll-back 28 is held against longitudinal movement relative to the head by a washer .31rigidly secured thereto and mounted inside ofthehead 23. The washer 21, which is mounted on the'key barrel (not shown) 7 These holes extend almost entirely through thekey barrel and operatively receive the projecting pins 29, 30.

From the construction already described, it will be apparent that the extension 11 is adjustably mounted upon the main part'of the lock by the smooth guide pins 24,25, and that the extension may be adjusted to any desired position relatively to the main part of the look by the adjusting screw 26. The roll-back 28 will be operatively connected to the key-operated barrel in any adjustment of the extension by the projecting pins 29, 30, which are slidably received in the openings 32, 33 and in the key barrel.

The shell-like structure of the head 23 forms a housing in which the lugs 15, 16 and 17 project, when the parts assume the position shown in Fig. 3, the arrangement being such that when the lock is given .its shortest adjustment, the head Wlll not abut against the ends of the lugs, but the lugs will project into the shell-like head while the rim of the head abuts against the inner face of the main part of the lock.

By constructing my lock so thatthe lugs are permitted to project within theheadof the extension, I am able to materially increase the length of the bearings for the pins 24:, 25 and the bearing of the adjusting screw 26, without decreasing the range through which the extension 11 may be adjusted. Furthermore, this arrangement by which the ends of the lugs may project into the head 23 enables me to obtain a range through which the extension may be adjusted, greater than the entire length of the main part of the lock, it being apparent that as the length of the lugs is increased beyond the end of the main part of the lock, the range of adjustment is correspondingly increased, provided the lugs are permitted toproject into the extension. In other words, by extending the lugs beyond the end of themain part of the look, I form what may be termed a telescopic adjustment between the sliding pins and the lugs, thereby increasing the range of adjustment in proportion to the extent the lugs are permitted to project. into the head 23.

In order to form a clearance space for the ends of the pins 24, 25 and adjusting screw 26 when the extension assumes its shortest adjustment, the escutcheon 13 is provided upon its inner face with recesses or sockets 34 into which the ends of the pins just mentioned may extend.

It will be apparent from the above description of my extensible lock that I have devised a simple, serviceable lock which permits of a long range of adjustment for the extension and which at alltimes providesa strong, firm supportingconnection between the main part of the lock and its extension.

Without limiting myself to the construc- 2 tion shown, I claim: I

1. An extensible cylinder lock comprising a main part. and an extension adjustably connected thereto, a guide pin rigidly secured to said extension, and a pin-receiving 4 lug formed rigidly upon the main part of the lock, said lug being positioned to extend beyond the main extension.

2. An extensible cylinder lock comprising a main part and an extension adjustably connected thereto, supporting means secured to said extension and projecting therefrom, and a lug cooperating with said supporting means, formed upon said main part, said lug part of said lock into the being positioned to extend beyond the main extend beyond the main part of said lock and into said extension when the lock is extendedits minimum distance.

. 4. An extensible cylinder lock comprising a main part and an extension adjustably connected thereto, an adjusting screw for said extension, and a lug for said screw mounted upon said main part'and positioned to project beyond the end of the main part of the lock into the extension, whereby the length of the lug is increased without decreasing the range of the adjustment of the extension.

5. An extensible cylinder lock comprising a main part and an extension adjustably connected thereto, guide pins rigidly secured to said extension, and pin-receiving lugs formed rigidly upon the main part of the lock, said lugs and pins being arranged to permit a range of adjustment of the extension greater than the entire length of the main part of the lock. V

6. An extensible cylinder lock comprising a main part and an extension, and means for adjustably securing the extension to the main part of the lock, said means constructed to permit a range of adjustment of the extension greater than the entire length of the main part of the lock.

7. An extensible'eylinder lockcomprising a main part and an extension, and means for adjustably securing the extension to the main part of the lock, said means being constructed to permlt a range of adjustment of the extension equal to the entire length of the main part of the lock, saidadjustable.

means .operatively supporting the extension throughout the entire range ofadjustment.

j r 8. In combination with an extensible cylinder lock, means for adjustablymounting the extension upon the main part of the lock,

said main part,said lug being'positioned to the extension upon the main part of the lock,

said means constructed to permit a range of adjustment equal to the entire length of the main part of the lock and said adjustable means supporting the parts of the lock in their proper relation throughout the entire range of adjustment.

10. An extensible cylinder lock comprising a main part and an extension, and lugs formed integral upon the main partof the lock for adjustably supporting the extension, said lugs positioned to be partly housed by the extension when the lockis extended its minimum distance.

11. An extensible cylinder'lock having a main part, and means upon said main part for supporting an extension, said means comprising integral lugs extending beyond the end of said main part into the extension, whereby the length of the lugs is increased without decreasing the range through which the extension may be adjusted.

12. An extensible cylinder lock comprising a main part and an extension adjustably connected thereto, guide pins rigidly secured to said extension, and pin-receiving lugs formed'rigidly upon the main part of the lock, said lugs being positioned to extend beyond the end of the main part of the lock into the extension, whereby the length of the bearing of the guide pins in the lugs is increased.

13. An extensible cylinder lock comprising a main part having an escutcheon formed at one end thereof, and an extension adjustably connected to said main part, said extension having rigid supporting means extending therefrom, lugs integral upon said main part for adjustably receiving said means, said lugs being positioned to extend beyond the end of said main part, said escutcheon having sockets formed in its face to receive the ends of the supporting means.

14. An extensible cylinder lock comprising a main part having an escutcheon formed at one-end thereof, and an extension adjustably connected to said main part, said extension having rigid supporting means extending therefrom, lugs integral upon said main part for adjustably receiving said means, said escutcheon having sock ets formed in its inner face to receive the ends of the supporting means.

15. In an extensible cylinder lock comprising a main part and an extension, guide pins secured to said extension to adjustably support the same, pin-receiving lugs formed rigidly upon the main part of the lock, and having pin-receiving openings therethrough, said lugs extending beyond the end of the main part of the lock, whereby a material increase in the length of the bearing for the pins is provided without decreasing the ran e of adjustment.

16. An extensible cylinder lock comprising a main part and an extension, means for adjustably securing said extension to the main part of said lock, comprising guide pins secured to saidextension and pin receiving lugs upon said main part, said lugs being positioned to extend beyond the end of said main part into said extension, Whereby'the range of adjustment of said extension is increased.

17. An extensible cylinder lock comprising a main part and an extension, means for adjustably securing said extension to the main part of said lock, comprising guiding means secured to said extension and guide receiving means upon said main part, said guide receiving means being positioned to extend beyond the inner end of the main part of said lock.

In witness whereof, I have hereunto set my hand on the 7th day of November, 1917.

HENRY G. VOIGHT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0. 

